#print('请输入一个加数')
#a = input()
#a = int(a)
# print('请输入另一个加数')
# b = input()
# b = int(b)
# c = a + b
# d = a - b
# e = a * b
# f = a / b
#print(c)
#print(d)
#print(e)
#print(f)
# if a == 12 :
#     print('正确')
# elif a == 13 :
#     print('a = 13')
# else:
#     print('错误')
#
# print('到了')

fruits = ['banana', 'apple',  'mango']
for index in range(len(fruits)):
   print('当前水果 :', fruits[index])


for mun in range(10,20) :
    for n in range(2,mun) :
        if mun % n ==  0 :
            print('合数是 :', mun)
            m = mun / n
            print('%d = %d * %d ' % (mun ,n,m))
            break
    else :
            print ('质数是 ：',mun) #12